1 //===- Error.h - system_error extensions for llvm-readobj -------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This declares a new error_category for the llvm-readobj tool. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef LLVM_READOBJ_ERROR_H 15 #define LLVM_READOBJ_ERROR_H 16 17 #include "llvm/Support/system_error.h" 18 19 namespace llvm { 20 21 const error_category &readobj_category(); 22 23 struct readobj_error { 24 enum _ { 25 success = 0, 26 file_not_found, 27 unsupported_file_format, 28 unrecognized_file_format, 29 unsupported_obj_file_format, 30 unknown_symbol 31 }; 32 _ v_; 33 34 readobj_error(_ v) : v_(v) {} 35 explicit readobj_error(int v) : v_(_(v)) {} 36 operator int() const {return v_;} 37 }; 38 39 inline error_code make_error_code(readobj_error e) { 40 return error_code(static_cast<int>(e), readobj_category()); 41 } 42 43 template <> struct is_error_code_enum<readobj_error> : true_type { }; 44 template <> struct is_error_code_enum<readobj_error::_> : true_type { }; 45 46 } // namespace llvm 47 48 #endif 49
